Install a 450 W or 550 W Internal DC Power Supply

Summit 550 W power supply units (PSUs) are available with either front-to-back or back-to-front airflow. If you install two PSUs, both must have the same airflow direction.



You cannot combine power supplies of different wattages in the same switch.

To install a Summit 450 W or 550 W DC power supply, refer to the following sections as needed:

  1. Make sure you have the tools and materials you need.
  2. Prepare the power cables and ground cable by attaching the provided connection lugs to the cables.
  3. Insert the power supply into the switch.
  4. Connect the ground wire.
  5. Connect the power supply to the electrical source and energize the DC circuit.